1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef TIMER_H 17 #define TIMER_H 18 #include <string> 19 #include <errno.h> 20 #include <stdint.h> 21 #include <stdio.h> 22 #include <unistd.h> 23 #include <cstdio> 24 25 #include "device_manager_log.h" 26 27 28 namespace OHOS { 29 namespace DistributedHardware { 30 typedef void (*TimeoutHandle)(void *data); 31 32 #define MAXEVENTS 255 33 34 enum DmTimerStatus : int32_t { 35 DM_STATUS_INIT = 0, 36 DM_STATUS_RUNNING = 1, 37 DM_STATUS_BUSY = 2, 38 DM_STATUS_CREATE_ERROR = 3, 39 DM_STATUS_FINISH = 6, 40 }; 41 42 class DmTimer { 43 public: 44 DmTimer(std::string &name); 45 ~DmTimer(); 46 DmTimerStatus Start(uint32_t timeOut, TimeoutHandle handle, void *data); 47 void Stop(int32_t code); 48 void WiteforTimeout(); 49 50 private: 51 int32_t CreateTimeFd(); 52 void Release(); 53 54 private: 55 DmTimerStatus mStatus_; 56 uint32_t mTimeOutSec_; 57 TimeoutHandle mHandle_; 58 void *mHandleData_; 59 int32_t mTimeFd_[2]; 60 int32_t mEpFd_; 61 std::string mTimerName_; 62 }; 63 } 64 } 65 #endif 66 67